Question

The quantum number that was supposed to explain the Zeeman effect is:
(A) M
(B) L
(C) S
(D) N

Answer 1

Hint: At first we will find what is given In the question. Then we will know it in detail. Then we will see what will be the shell which was supposed to explain the Zeeman effect. Then in the end we will choose the correct option.

Complete step-by-step answer:Step1: We are supposed to know what is Zeeman effect and what was the quantum number that was used to explain the Zeeman effect.
Step2: All the atomic energy levels , the spectral lines are given and formulated with an assumption that there are no magnetic field lines present and influencing the atoms. If there are magnetic field lines present then the energy levels are split into more number of levels and the spectral lines also get split. The splitting of all these is called Zeeman effect.
Step3: The quantum number m is associated with the magnetic behavior of electrons. The pattern and amount of splitting depend upon the power of the magnetic field. The lines corresponding to the Zeeman effect also show the polarization effect. Polarization is the direction in which the electromagnetic fields are vibrating.
Step4: Hence the M is the quantum number.

The correct answer is Option (A).

Note: According to the Zeeman effect when an atom is placed in the magnetic field then the applied magnetic field interacts with the magnetic moment of the electron generated by its orbital motion. The effect of electron spin is not considered.